2008 Summit by Thor vs. 2008 Jayco Jayflight??

Thanks for the all the responses so far!
I'll ask more questions regarding the Warranty, if it is truly transferable than it'll be hard to walk away from the used price WITH the protection...the Thor does offer more space and a better floorplan, and STORAGE (we've got 4 kiddos ages 4 and under!) however, there is not a lot of info out there about that particular one.